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发明名称
摘要
申请公布号
JPH0274444(U)
申请公布日期
1990.06.07
申请号
JP19880154371U
申请日期
1988.11.28
申请人
发明人
分类号
E04G17/00;(IPC1-7):E04G17/00
主分类号
E04G17/00
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代理人
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